Finding the Fourth Proportional to 1,210,404.69, 1,670,363.24 and 726,978.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,210,404.69 : 1,670,363.24 = 726,978.06 : x
2. Step 2: Convert to fraction form
   1,210,404.69/1,670,363.24 = 726,978.06/x
3. Step 3: Cross multiply
   1,210,404.69x = 1,670,363.24 × 726,978.06
4. Step 4: Simplify right side
   1,210,404.69x = 1,214,317,424,075.62
5. Step 5: Solve for x
   x = 1,214,317,424,075.62/1,210,404.69
6. Step 6: Final answer
   x = 1,003,232.58